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Front and Rear Dual Rate Coil Springs for Balanced Handling
At the core of this suspension system are the custom tuned dual rate coil springs. These springs adapt to varied load conditions and terrain — whether you are hauling gear, rock crawling, or cruising the highway. The progressive spring design ensures a plush ride under normal loads while delivering increased support when needed, resulting in improved off road performance without sacrificing on road comfort.
Custom Valved JSPEC Gas Shocks
To match the dynamics of the dual rate coils, the JSpec gas shocks are valved specifically for optimal damping. These shocks offer consistent, controlled suspension travel across a range of driving environments. For those seeking advanced performance, the system can be upgraded to the Fox 2.0 Performance Series IFP shocks for added control and durability in extreme conditions.
JKS Adjustable Front Track Bar
Included in this kit is the legendary JKS adjustable front track bar. Built from 1.5 inch DOM tubing with a 1.25 inch threaded end, this track bar provides fine tune adjustability to center the front axle and improve handling. The factory style rubber bushing at the axle end ensures quiet operation while the spherical misalignment joint on the frame side maximizes articulation and eliminates binding. This direct bolt on component helps reduce bump steer and maintains correct steering geometry at lift height.
Front Sway Bar Quicker Disconnects
JKS pioneered the sway bar disconnect and their Quicker Disconnect system is still the industry benchmark. Featuring greasable, high misalignment poly flex ball ends and adjustable length design, these links allow you to disconnect your front sway bar in seconds for full suspension articulation. Stainless steel anchor pins are included for secure stowage when disconnected.
Brake Line Relocation and Travel Optimization
Front brake line relocation brackets are included to accommodate the extended travel provided by the lift. These brackets utilize factory holes and locating tabs to ensure a secure, rotation free install. They are specifically engineered to complement the JSPEC shock lengths, preserving factory routing while avoiding stress during axle droop.
Rear Track Bar Relocation Bracket
To complement the front track bar adjustment, a rear track bar bracket is included to raise the mounting point at the axle. This corrects the rear geometry, flattens the track bar angle, and improves roll center characteristics for better cornering stability and reduced body roll.
Front Bump Stop Extensions
Engineered to control suspension compression, the included bump stop extensions ensure that both coil springs and shocks remain within safe travel limits. These extensions are application specific and protect against bottoming out, ensuring suspension longevity.
Caster Correction for Road Stability
To address caster loss from the lift, JKS includes eccentric cam bolts for the lower control arms. These provide precise caster adjustment, eliminating twitchy or unstable steering. For off road enthusiasts, upgrading to J Link heavy duty lower control arms is recommended for increased durability while maintaining OE ride quality.
Fitment
| Years | Drive | Make | Model |
|---|---|---|---|
| 1997 to 2006 | 4WD | Jeep | Wrangler TJ |
| 1997 to 2006 | 2WD | Jeep | Wrangler TJ |
Kit Components
- Dual Rate Front and Rear Coil Springs
- JSPEC Custom Valved Gas Shocks
- Front Adjustable Track Bar
- Quicker Disconnect Front Sway Bar Links
- Front Brake Line Relocation Brackets
- Rear Track Bar Relocation Bracket
- Front Bump Stop Extensions
- Eccentric Cam Bolts for Caster Correction
Quick Specs
| Specification | Detail |
|---|---|
| Part Number | JSPEC110K |
| Lift Height | 2 Inches |
| Installation Difficulty | Moderately Easy |
| Estimated Install Time | 4 to 6 Hours |
| Proposition 65 | WARNING: Cancer and Reproductive Harm |
Important Notes
- Fits all Wrangler TJ models including Rubicon and Unlimited
- Max recommended tire and wheel setup: 32x11.50 on 15x8 with 4.5 inch backspacing or 32x10.50 on stock wheels
Final Word on TJ Performance
The JKS JSPEC110K system offers a complete, intelligently engineered suspension upgrade for Jeep Wrangler TJ owners. With enhanced ride quality, increased articulation, and unmatched attention to detail, this kit sets the benchmark for 2 inch lift systems in the market. Every component is built to perform under pressure — whether on the trail or the open road.
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